Note that, if we use the coordinates change: \(x\rightarrow \frac{x}{|x|^2}\) ,
the limit of \(c_k^\frac{n}{n-2}(F(r_kx)-F(r_kx_0))+x_0\) 
is just the identity map of \(\mathbb {R}^n\)  in the new coordinates.
Therefore, Theorem REF  generalizes a result of S. Müller and V. Šverák [1]}.
Compared with their result,
we are not sure if \(|x|^{n-2}u\)  is continuous at 0, thus \(c_k\)  is not written in term of \(r_k\) . However, \(F\)  will never have branches at 0 in our case.
